-4s-8+9=20

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Solution for -4s-8+9=20 equation: 



-4s-8+9=20

We move all terms to the left:

-4s-8+9-(20)=0

We add all the numbers together, and all the variables

-4s-19=0

We move all terms containing s to the left, all other terms to the right

-4s=19

s=19/-4

s=-4+3/4

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